My cat asks me to go outside. No english words involved of course. She sits and faces the door, meows at it, and paws at the knob. Maybe you can argue they are speaking cat when they ask.

I swear my cat says 好玩儿 hǎowá'er? when he lacks stimulation, which means "Fun?"

<raises eyebrows>

Next they will argue that your eyebrows are words.

dogs have language!